CHEM-120 Exam One // Cunningham
questions with verified answers
Matter - Correct answer anything that has mass and takes up space
Nonmatter examples - Correct answer light, heat, sound
Composition - Correct answer what makes up matter
Examples of composition - Correct answer H2O
Element - Correct answer basic material that cannot be broken down by chemical means
Examples of elements - Correct answer Hydrogen, oxygen
Compound - Correct answer chemical combination of two or more elements
example of compound - Correct answer CO2
Molecule examples - Correct answer O2, H2, O3
what is scientific notation - Correct answer a way to express very large or very small numbers in a
compact and concise way
3.94 x 10^7 - Correct answer 39,400,000
1/100 - Correct answer 1 x 10^-2
, 1000 - Correct answer 1 x 10^3
100 - Correct answer 1 x 10^2
.001 - Correct answer 1 x 10^-3
3.94 x 10^-2 - Correct answer 0.0394
positive exponent in scientific notation moves decimal - Correct answer to the right
negative exponent in scientific notation moves decimal - Correct answer to the left
34,000 - Correct answer 3.4 x 10^4
0.000005 - Correct answer 5 x 10^-6
1.2 x 10^5 - Correct answer 120,000
5.30 x 10^-3 - Correct answer 0.00530
Mass base unit - Correct answer Kilogram
Length base unit - Correct answer meter
time base unit - Correct answer second
temperature base unit - Correct answer kelvin
questions with verified answers
Matter - Correct answer anything that has mass and takes up space
Nonmatter examples - Correct answer light, heat, sound
Composition - Correct answer what makes up matter
Examples of composition - Correct answer H2O
Element - Correct answer basic material that cannot be broken down by chemical means
Examples of elements - Correct answer Hydrogen, oxygen
Compound - Correct answer chemical combination of two or more elements
example of compound - Correct answer CO2
Molecule examples - Correct answer O2, H2, O3
what is scientific notation - Correct answer a way to express very large or very small numbers in a
compact and concise way
3.94 x 10^7 - Correct answer 39,400,000
1/100 - Correct answer 1 x 10^-2
, 1000 - Correct answer 1 x 10^3
100 - Correct answer 1 x 10^2
.001 - Correct answer 1 x 10^-3
3.94 x 10^-2 - Correct answer 0.0394
positive exponent in scientific notation moves decimal - Correct answer to the right
negative exponent in scientific notation moves decimal - Correct answer to the left
34,000 - Correct answer 3.4 x 10^4
0.000005 - Correct answer 5 x 10^-6
1.2 x 10^5 - Correct answer 120,000
5.30 x 10^-3 - Correct answer 0.00530
Mass base unit - Correct answer Kilogram
Length base unit - Correct answer meter
time base unit - Correct answer second
temperature base unit - Correct answer kelvin
